[BUGFIX] Filter out space char on client-side from alpha/num/alphanum/alphanum_x fields

Resolves: #76125
Releases: master
Change-Id: I9d542a7a1a380a32f39f1c61f7cb4cf2d4b316b5
Reviewed-on: https://review.typo3.org/48066

Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>

typo3/sysext/backend/Resources/Public/JavaScript/FormEngineValidation.js

@@ -402,7 +402,7 @@ define(['jquery', 'TYPO3/CMS/Backend/FormEngine'], function ($, FormEngine) {
 							special = 0;
 							break;
 					}
-					if (alpha || num || theChar == ' ' || special) {
+					if (alpha || num || special) {
 						newString += theChar;
 					}
 				}

typo3/sysext/backend/Resources/Public/JavaScript/jsfunc.evalfield.js

@@ -97,7 +97,7 @@ function evalFunc_caseSwitch(type,inVal) {
 					case "alpha":	num=0; special=0;		break;
 					case "num":	alpha=0; special=0;		break;
 				}
-				if (alpha || num || theChar==' ' || special) {
+				if (alpha || num || special) {
 					newString+=theChar;
 				}
 			}

typo3/sysext/core/Tests/Acceptance/Backend/Formhandler/ElementsBasicCest.php

@@ -69,13 +69,13 @@ class ElementsBasicCest
             'input_4 eval=alpha' => [
                 [
                     'Kasper = TYPO3',
-                    'Kasper  TYPO',
+                    'KasperTYPO',
                 ],
             ],
             'input_5 eval=alphanum' => [
                 [
                     'Kasper = TYPO3',
-                    'Kasper  TYPO3',
+                    'KasperTYPO3',
                 ],
             ],
             'input_6 eval=date' => [